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USnavy


May 26, 2010, 7:35 AM
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How does time affect rope impact force?
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I am considering picking up a new rope on sale but noticed it was made over four years ago. Normally I wouldn't care if I was using it for sport. However considering its for trad and it already has an impact force of just under 9 kN, I ask, how much does four years in a closet increase the impact force of the rope? Is it relatively miniscule or noticeable?


(This post was edited by USnavy on May 26, 2010, 7:35 AM)


gmggg


May 26, 2010, 2:10 PM
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USnavy wrote:
I am considering picking up a new rope on sale but noticed it was made over four years ago. Normally I wouldn't care if I was using it for sport. However considering its for trad and it already has an impact force of just under 9 kN, I ask, how much does four years in a closet increase the impact force of the rope? Is it relatively miniscule or noticeable?

Who made the rope?


Arrogant_Bastard


May 27, 2010, 5:05 AM
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What color is the rope?


shimanilami


May 27, 2010, 5:36 AM
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How long is the rope?


majid_sabet


May 27, 2010, 5:56 AM
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USnavy wrote:
I am considering picking up a new rope on sale but noticed it was made over four years ago. Normally I wouldn't care if I was using it for sport. However considering its for trad and it already has an impact force of just under 9 kN, I ask, how much does four years in a closet increase the impact force of the rope? Is it relatively miniscule or noticeable?

you mean picking up your first rope ever?


cleethree


May 27, 2010, 4:56 PM
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how big was the closet?


moose_droppings


May 27, 2010, 5:50 PM
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cleethree wrote:
how big was the closet?

You sure you don't mean, what is the mass of the closet?

Please read completely through this for clarification.

Laugh Wink


justroberto


May 27, 2010, 5:59 PM
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USnavy wrote:
majid_sabet wrote:
USnavy wrote:
I am considering picking up a new rope on sale but noticed it was made over four years ago. Normally I wouldn't care if I was using it for sport. However considering its for trad and it already has an impact force of just under 9 kN, I ask, how much does four years in a closet increase the impact force of the rope? Is it relatively miniscule or noticeable?

you mean picking up your first rope ever?
Ya your mom let me use hers before but after tearing through it faster then I tear through her, I decided to get my own.


bill413


May 27, 2010, 6:01 PM
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Re: [moose_droppings] How does time affect rope impact force? [In reply to]
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moose_droppings wrote:
cleethree wrote:
how big was the closet?

You sure you don't mean, what is the mass of the closet?

Please read completely through this for clarification.

Laugh Wink

Well, like so much else in climbing, It Depends.
Is it a metric or non-metric closet?


gmggg


May 27, 2010, 7:31 PM
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Re: [bill413] How does time affect rope impact force? [In reply to]
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bill413 wrote:
moose_droppings wrote:
cleethree wrote:
how big was the closet?

You sure you don't mean, what is the mass of the closet?

Please read completely through this for clarification.

Laugh Wink

Well, like so much else in climbing, It Depends.
Is it a metric or non-metric closet?

The correct non-metric name for closet would really be storeroom. Closets are a special subset of cabinets used primarily for linens and other household goods. Trying to convert from storerooms to closets is like trying to convert from cabinets to cupboards.


patmay81


May 27, 2010, 7:39 PM
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hmmm, I've got a rope that I store in a 360 cu.ft. closet (not cupboard or cabinet) after every time I use it. I've had this particular rope (10.2MMx60M, green and white, maxxim) for at least 4 years.

It seems to work great for trad still.
I can't say what the impact forces are on it any more, but it still catches falls just fine as of last week.


Partner cracklover


May 27, 2010, 7:52 PM
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USnavy wrote:
I am considering picking up a new rope on sale but noticed it was made over four years ago. Normally I wouldn't care if I was using it for sport. However considering its for trad and it already has an impact force of just under 9 kN, I ask, how much does four years in a closet increase the impact force of the rope? Is it relatively miniscule or noticeable?

Ropes tend to shrink over time without usage. Make sure you don't rap off the end! You might want to consult this thread for suggestions on how to measure it.

GO


seatbeltpants


May 27, 2010, 8:26 PM
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hehehe - thank you all for improving my friday morning :D


hafilax


May 27, 2010, 8:42 PM
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USnavy wrote:
I am considering picking up a new rope on sale but noticed it was made over four years ago. Normally I wouldn't care if I was using it for sport. However considering its for trad and it already has an impact force of just under 9 kN, I ask, how much does four years in a closet increase the impact force of the rope? Is it relatively miniscule or noticeable?
Where do you come up with these questions?


majid_sabet


May 27, 2010, 8:54 PM
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Re: [cracklover] How does time affect rope impact force? [In reply to]
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cracklover wrote:
USnavy wrote:
I am considering picking up a new rope on sale but noticed it was made over four years ago. Normally I wouldn't care if I was using it for sport. However considering its for trad and it already has an impact force of just under 9 kN, I ask, how much does four years in a closet increase the impact force of the rope? Is it relatively miniscule or noticeable?

Ropes tend to shrink over time without usage. Make sure you don't rap off the end! You might want to consult this thread for suggestions on how to measure it.

GO

correct except ,when you rapping, your weight actually is adding 5% to length of the rope( static elongation) so with 50m you could easily rap a 52 +_ meter


gmggg


May 27, 2010, 8:57 PM
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Re: [majid_sabet] How does time affect rope impact force? [In reply to]
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majid_sabet wrote:
cracklover wrote:
USnavy wrote:
I am considering picking up a new rope on sale but noticed it was made over four years ago. Normally I wouldn't care if I was using it for sport. However considering its for trad and it already has an impact force of just under 9 kN, I ask, how much does four years in a closet increase the impact force of the rope? Is it relatively miniscule or noticeable?

Ropes tend to shrink over time without usage. Make sure you don't rap off the end! You might want to consult this thread for suggestions on how to measure it.

GO

correct except ,when you rapping, your weight actually is adding 5% to length of the rope( static elongation) so with 50m you could easily rap a 52 +_ meter

That all depends on what you eat while you are climbing.


bill413


May 27, 2010, 11:09 PM
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majid_sabet wrote:
cracklover wrote:
USnavy wrote:
I am considering picking up a new rope on sale but noticed it was made over four years ago. Normally I wouldn't care if I was using it for sport. However considering its for trad and it already has an impact force of just under 9 kN, I ask, how much does four years in a closet increase the impact force of the rope? Is it relatively miniscule or noticeable?

Ropes tend to shrink over time without usage. Make sure you don't rap off the end! You might want to consult this thread for suggestions on how to measure it.

GO

correct except ,when you rapping, your weight actually is adding 5% to length of the rope( static elongation) so with 50m you could easily rap a 52 +_ meter

I'm going to have to get a more accurate barometer.


jt512


May 27, 2010, 11:30 PM
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bill413 wrote:
majid_sabet wrote:
cracklover wrote:
USnavy wrote:
I am considering picking up a new rope on sale but noticed it was made over four years ago. Normally I wouldn't care if I was using it for sport. However considering its for trad and it already has an impact force of just under 9 kN, I ask, how much does four years in a closet increase the impact force of the rope? Is it relatively miniscule or noticeable?

Ropes tend to shrink over time without usage. Make sure you don't rap off the end! You might want to consult this thread for suggestions on how to measure it.

GO

correct except ,when you rapping, your weight actually is adding 5% to length of the rope( static elongation) so with 50m you could easily rap a 52 +_ meter

I'm going to have to get a more accurate barometer.

Get one that's calibrated in inches of mercury, so Aric can throw another hissy fit.

Jay


bill413


May 28, 2010, 12:50 AM
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jt512 wrote:
bill413 wrote:
majid_sabet wrote:
cracklover wrote:
USnavy wrote:
I am considering picking up a new rope on sale but noticed it was made over four years ago. Normally I wouldn't care if I was using it for sport. However considering its for trad and it already has an impact force of just under 9 kN, I ask, how much does four years in a closet increase the impact force of the rope? Is it relatively miniscule or noticeable?

Ropes tend to shrink over time without usage. Make sure you don't rap off the end! You might want to consult this thread for suggestions on how to measure it.

GO

correct except ,when you rapping, your weight actually is adding 5% to length of the rope( static elongation) so with 50m you could easily rap a 52 +_ meter

I'm going to have to get a more accurate barometer.

Get one that's calibrated in inches of mercury, so Aric can throw another hissy fit.

Jay

Of course, barometers tend to be read in decimal inches of mercury (29.81" or 1009.5mb where I am right now).


adatesman


May 28, 2010, 1:12 AM
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donald949


May 28, 2010, 1:17 AM
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USnavy wrote:
I am considering picking up a new rope on sale but noticed it was made over four years ago. Normally I wouldn't care if I was using it for sport. However considering its for trad and it already has an impact force of just under 9 kN, I ask, how much does four years in a closet increase the impact force of the rope? Is it relatively miniscule or noticeable?
So its going to be a trad rope? A trad trad or a sport trad? As in new trad or old trad. Do you ever think you might use it as a Mixed trad trad rope?


bill413


May 28, 2010, 1:42 AM
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Re: [adatesman] How does time affect rope impact force? [In reply to]
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adatesman wrote:
This:
USnavy wrote:
I am considering picking up a new rope on sale but noticed it was made over four years ago. Normally I wouldn't care if I was using it for sport. However considering its for trad and it already has an impact force of just under 9 kN, I ask, how much does four years in a closet increase the impact force of the rope? Is it relatively miniscule or noticeable?

Coming from the guy who so recently said this while arguing relative experience with Dingus?

USnavy wrote:
I have climbed near 100 multi-pitch lines including the longest and only grade V sport climb in North America and a R rated grade III+ 5.11d. Soon I will be adding El Cap to my tick list as well. Enough with the "your a noob" bullshit, your what, 40? 45? Please...

Well, if he climbed them all in less than 4 years...


marc801


May 28, 2010, 3:57 AM
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I'm surprised no one has asked the most important, obvious question yet: what time of day do you plan to fall on the rope? We all know that impact force increases exponentially the later in the day the fall is taken.

One wonders at this point, was the OP born a moron or were special classes required?


(This post was edited by marc801 on May 28, 2010, 3:58 AM)


norushnomore


May 28, 2010, 8:41 AM
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marc801 wrote:
I'm surprised no one has asked the most important, obvious question yet: what time of day do you plan to fall on the rope? We all know that impact force increases exponentially the later in the day the fall is taken.

One wonders at this point, was the OP born a moron or were special classes required?

Common, you don't need to be a smart a$$ here. This is a legit question, and if you are climbing a lot you are going thru a lot of ropes.

A few years back I did get a rope on sale at Gear Express. First time I tried using it became obvious something was not right about it, no give, very stiff. I examined the packaging and found out it was over 4 years old.

I called GE guys, they were very nice, apologized and overnighted me a replacement rope.

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